第一句是强调句型,第二句不是,强调句型是t is (was) 被强调部分+ that (who) + 句子其他部分.而且去掉强调句型之后还是完整的一句话.可以看第一题1.i still remember how many years ago i last met her in the countryside,这还是一句完整的话.第二题2.i have always been honeat and straightforward,and it dosen't matter(who it is) i am talking to.,根本就不是个强调句,
应该是it is who……什么的啊.给你一个例子参考原句：My father did the experiment in the lab yesterday evening.
强调主语：It was my father who did the experiment in the lab yesterday evening.
强调宾语：It was the experiment that my father did in the lab yesterday evening.
强调时间：It was yesterday evening that my father did the experiment in the lab.(注意不用when)
强调地点：It was in the lab that my father did the experiment yesterday evening.
希望能够帮到你.